Abstract:

This dataset shows the four locatable mineral land classifications for the Arizona Strip District Office. The classifications identify lands that are available for location under the mining law (General Mining Law of 1872, as amended), along with restrictions.

Purpose:

For regional analysis and display at 1:24,000.  This dataset was prepared/acquired for use in the ASDO resource management planning process.

Supplemental information:

Dataset locally known as locate_feis.  This dataset and other datasets in the Arizona Strip District Office Geographic Information Database (ASDOGID) represent data for the BLM Arizona Strip District Office, and may include the Arizona Strip Field Office, Vermilion Cliffs National Monument (VCNM) and/or the Grand Canyon-Parashant National Monument (GCPNM or PARA).  The Grand Canyon-Parashant National Monument is managed jointly by the BLM and the National Park Service (NPS). The criteria for each of the four categories is published in Appendix 2 P. B., of the 2005, Arizona Strip Draft Environmental Impact Statement (DEIS).

Currentness reference:

publication date

Use constraints:

This data should not be used at a scale larger than 1:24,000.  The data and corresponding attributes are only as accurate as the source maps from which they were obtained, and may vary depending on the data and method of acquisition.

This data is suitable for regional planning, management decision support at intermediate scales (i.e. 1:24,000 or smaller), and cartographic purposes.  The data is not suitable for analysis at scales larger than 1:24,000.

If the Receiving Agency (RA) has modified the data in any way, they are obligated to describe the types of modifications they have performed on hardcopy maps utilizing the data.  RA specifically agrees not to misrepresent ASDOGID datasets or to imply that any changes made were approved by BLM ASDO or NPS.

No warranty is made by the BLM/NPS for use of the data for purposes not intended by BLM/NPS.  This information may be updated without notification.

Address:

345 East Riverside Dr.

Please use email to contact.

Attribute accuracy report:

Feature attributes were taken from source material.  Code assignments are believed to be representative of the source document.

Logical consistency report:

Data was reviewed for correct topological structure.  Duplicate lines have been removed.

Completeness report:

This dataset covers the entire BLM Arizona Strip District.  It is constantly being reviewed and added to as additional information becomes available.

Horizontal positional accuracy report:

Overall horizontal accuracy for this data is not greater than national mapping accuracy standards (NMAS) for USGS source maps.  Snapping and coordinate shift tolerances were maintained at 0.01 meters or less through editing.  Horizontal positional accuracy for the digital data set was tested by visual comparison of the source data with hard copy verification plots.

Process description:

The criteria for the data was published in the 43 CFR 3809 regulations, the Mining Law of 1872, as amended, and specific withdrawals and designations by law. These data were compiled and reviewed.The data was described in Appendix 2 P.B., of the 2005, DEIS. (http://www.blm.gov/az/LUP/strip/DEIS.htm)

Process description:

Arcs were derived from various datasets in order to meet outlined criteria.  These datasets included management units, wilderness areas, BLM National Monuments, the Virgin River Gorge scenic withdrawal, Areas of Critical Environmental Concern (ACEC), Areas Managed for Wilderness Characteristics, powersite withdrawals, public water reserves, and stock-raising homestead act split-estate lands.  Fields were created and polygons calculated according to outlined criteria.

Address:

345 East Riverside Drive

*Attribute definition:

Internal feature number.